Jack McKeon will likely be named interim manager of the Marlins, making him the oldest skipper in baseball by 14 years. McKeon broke into pro baseball in 1949, the same year as Mickey Mantle, and debuted as a major league manager in 1973, as did Whitey Herzog. Of the 671 managers in major league history, 157 of them had careers that started after and ended before McKeon's (provided he gets the job). Via Baseball-Reference, here are those managers, along with the number of games they managed.

Bobby Cox, 4508

Joe Torre, 4329

Lou Piniella, 3548

Tom Lasorda , 3040

Tom Kelly, 2385

Mike Hargrove, 2363

Art Howe, 2266

Frank Robinson , 2241

Bobby Valentine, 2189

Jim Fregosi, 2123

Felipe Alou, 2055

Phil Garner, 2040

Davey Johnson, 2038

Jack McKeon, 1952

Cito Gaston, 1731

Jimy Williams, 1701

Buck Rodgers, 1559

Johnny Oates, 1544

Roger Craig, 1475

Jerry Manuel, 1390

Jeff Torborg, 1352

Don Baylor, 1316

Buddy Bell, 1243

Pat Corrales, 1211

Gene Lamont, 1116

Darrell Johnson, 1063

Rene Lachemann, 988

Ken Macha, 972

George Bamberger, 936

Dick Howser, 933

Dallas Green, 932

Tom Trebelhorn, 932

Hal McRae, 872

Jim Lefebvre, 860

Larry Bowa, 853

Joe Altobelli, 844

Bob Boone, 815

Doug Rader, 806

Pete Rose, 786

Larry Dierker, 783

Lloyd McClendon, 782

Tony Muser, 748

Billy Gardner, 747

Grady Little, 648

John Wathan, 646

Jerry Narron, 633

Dave Garcia, 617

Jim Frey, 611

John Gibbons, 610

Kevin Kennedy, 582

Russ Nixon, 579

Bob Brenly, 565

Ray Miller, 563

Joe Morgan, 563

Willie Randolph, 555

Jim Marshall, 555

Lee Elia, 539

Bob Lillis, 537

Larry Rothschild, 499

Alan Trammell, 486

Hal Lanier, 486

John Russell, 485

Roy Hartsfield, 484

Tony Pena, 483

David Trembley, 470

John Boles, 446

Butch Hobson, 439

Terry Bevington, 437

Gene Michael, 406

Greg Riddoch, 394

John Felske, 384

Carlos Tosca, 382

Doc Edwards, 380

Steve Boros, 368

Trey Hillman, 359

Ken Boyer, 357

Jackie Moore, 353

Cecil Cooper, 341

Davey Lopes, 340

Nick Leyva, 338

Marcel Lachemann, 331

Bill Russell, 322

Vernon Rapp, 300

Dave Miley, 289

Sam Perlozzo, 286

Harvey Kuenn, 279

Stump Merrill, 275

Don Wakamatsu, 274

Bud Harrelson, 274

Lee Mazzilli, 269

Bobby Mattick, 268

Ray Knight, 262

Billy Hunter, 254

Frank Howard, 226

Jim Fanning, 219

Chuck Cottier, 217

Buck Martinez, 215

A.J. Hinch, 212

Joe Frazier, 207

Larry Parrish, 186

Joey Amalfitano, 185

Mike Ferraro, 174

Cal Ripken, 169

Edwin Rodriguez, 164

Tim Johnson, 163

Jerry Coleman, 163

Bill Plummer, 162

Tony Perez , 158

John McLaren, 156

Luis Pujols, 155

Cookie Rojas, 155

Tom Runnells, 149

Jerry Royster, 147

Norm Sherry, 147

Phil Regan, 144

Jim Davenport, 144

Karl Kuehl, 128

Jim Essian, 122

Eddie Haas, 121

Pete Mackanin, 106

Don Kessinger, 106

Jim Snyder, 105

Mike Jorgensen, 96

Bucky Dent, 89

Glenn Hoffman, 88

Larry Doby , 87

Al Pedrique, 83

Maury Wills, 83

Bruce Kimm, 78

Joel Skinner, 76

Toby Harrah, 76

Johnny Goryl, 73

Tommy Helms, 64

Juan Samuel, 51

Daren Brown, 50

Joe Kerrigan, 43

Bobby Wine, 41

Gene Tenace, 33

Connie Ryan, 33

Matt Galante, 27

John Hart, 19

Bob Schaefer, 18

Dave Clark, 13

John Mizerock, 13

Dale Sveum, 12

John Vukovich, 11

Jeff Newman, 10

Moose Stubing, 8

Mike Cubbage, 7

Mel Queen, 5

Jack Krol, 3

Gary Varsho, 2

Dick Tracewski, 2

Marty Martinez, 1

Ted Turner, 1

Vern Benson, 1

That's a collective 95,972 games, roughly a quarter of all games managed since 1871, when Jack McKeon was a teenager.